272 NEW HEPATICjE. 



2. S. brevicaulis, Tayl. ; caule abbreviate, caespitoso, subra- 

 moso, adscendente ; foliis imbricatis, patentibus, integerri- 

 mis, insequaliter bilobis, oblongo-ovatis, obtuse apiculatis, 

 dorsali triplo minori ; calyce obovato, gibbo, subcompresso, 

 apice plicato, hinc fisso, ore integerrimo. 

 Hab. North America. J. Drummond. Hook. Herb. 



Patches wide, brownish-olive. Stems about \ inch long, 

 with radicles at the base, ascending and incrassated at the 

 top. Upper leaves closely imbricated, all usually with a 

 short obtuse point, yet sometimes they are rounded and even 

 slightly emarginated ; perichaetial leaves similar to the cauhne 

 but more patent. Calyx scarcely truncated, the upper mar- 

 gin shorter and more plicate. This differs from S. irrigua, 

 Nees, by the shorter stems, the entire leaves, and the wider 

 and entire plicated mouth of the calyx. 



4. Jungermannia, Linn, (char, emend. Nees.) 



1. J. leucocephala, Tayl.; caule subcaespitoso, erecto, sub- 

 ramoso, ramis erectis, subbinis ; foliis secundis, imbricatis, 

 late ovatis, concavis, bifidis, segmentis insequalibus, acutis, 

 apiculatis, margine ventrali, amplexante, basi unicihato; 

 calyce terminali, cylindraceo, 4-angulato, acuminato, ore 

 incano, subdenticulato. 



Hab. On trees, on Cayambe, at an altitude of 14,000 ft. 



1827, Prof. W. Jameson. Dr. Greville's Herbarium. 



Stems 1-2 inches high, brownish purple. Leaves tumid, 

 entire, divided half way to the base by an acute sinus. Peri- 

 chaetial leaves erect, adpressed, their segments elongated, 

 with hoary points. This species differs from J. pUigw a > 

 Nees, by the shorter, more concave leaves, whose segments 

 are not complicate, by the single, very considerable cilia at 

 the base near the stem of the ventral segment, and by the 

 acuminate calyces. 



2. J. leucostoma, Tayl. ; caule caespitoso, adscendente, ranio- 

 so; foliis laxe imbricatis, arcuato-patentibus, secundis, 

 quadrato-ovatis, concavis, bifidis, segmentis ovatis, acutis, 



